1f2256ec81a/7ee8b9b2 were referencing a multiple_sector_count field,
but it was never set. This was resulting in an error being returned
(`READ MULTIPLE with SET MULTIPLE==0`).` We actually should use
`sec_per_block``, which bd16b7c69e introduced.
Although being optional in ATA-3 and absent in >= ATA-4,
RECALIBRATE is issued by Open Firmware 3.1.1 during device
initialization. If it fails, the drive is considered non-bootable.
Now we got two classes: IdeChannel and MacioIdeChannel.
The former models a generic IDE channel so it can be used elsewhere.
The latter implements MacIO specific configuration register(s)
and interrupt signaling.
Both cmd_pkt and data_buf class members are cast to a uint16_t pointer,
so we need to make sure they are properly aligned, otherwise it is
undefined behavior.
Take the DDRA and DDRB registers into account as well because
there is software that tries to change state of the pins configured
as inputs.
This commit fixes Cuda for Rhapsody.
We do a linear scan in find_range (which is called on all TLB misses) to
find the entries. The largest and most frequently hit entry is the
system memory (which starts at 0). By ensuring that it's the first entry
in the list, we end up only doing one iteration through the loop.
The JS implementation does content hashing to not blit unchanged
framebuffer contents (see mihaip/dingusppc@171ff2d407).
However, that is not necessary for the ATI adapters that already track
this and only set draw_fb if the framebuffer has actually changed.
Pass through a fb_known_to_be_changed for these cases, and also add an
optional update_skipped method (since the JS still wants to know when
the last logical screen update was).
Raw images contain supplementary information like synchronization fields,
correction codes etc. that needs to be ignored/discarded when
reading/writing user data.
This commit establish a basic architecture for exchanging user data
between a virtual device and a raw image.
